UE对象的创建和销毁

UObject

创建

1. 构造函数中

UMyObject* MyObject = CreateDefaultSubobject(TEXT("MyObject"));

2. Runtime中

UMyObject* MyObject = NewObject(this);

销毁

1. 自动销毁

//等待GC
MyObject = nullptr;

2. 主动销毁

//异步执行，当前帧内仍然有效，等待GC
MyObject->CondionalBeginDestroy();
MyObject = nullptr;

//标记PendingKill,实例为NULL,等待GC 
//gc.TimeBetweenPurgingPendingKillObjects=60 配置销毁时间间隔
MyObject->MakePendingKill();
MyObject = nullptr;

//强制GC
MyObject->ForceGarbageCollection(MyObject);

Actor